28 lines
1017 B
LLVM
28 lines
1017 B
LLVM
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; REQUIRES: asserts
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; RUN: opt < %s -S -loop-unroll -unroll-runtime=true -unroll-allow-remainder=true -unroll-count=4
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; Make sure that the runtime unroll does not break with a non-exiting latch.
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define i32 @test(i32* %a, i32* %b, i32* %c, i64 %n) {
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entry:
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br label %while.cond
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while.cond: ; preds = %while.body, %entry
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%i.0 = phi i64 [ 0, %entry ], [ %inc, %while.body ]
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%cmp = icmp slt i64 %i.0, %n
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br i1 %cmp, label %while.body, label %while.end
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while.body: ; preds = %while.cond
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%arrayidx = getelementptr inbounds i32, i32* %b, i64 %i.0
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%0 = load i32, i32* %arrayidx
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%arrayidx1 = getelementptr inbounds i32, i32* %c, i64 %i.0
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%1 = load i32, i32* %arrayidx1
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%mul = mul nsw i32 %0, %1
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%arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %i.0
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store i32 %mul, i32* %arrayidx2
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%inc = add nsw i64 %i.0, 1
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br label %while.cond
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while.end: ; preds = %while.cond
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ret i32 0
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}
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